Shock-absorber.



R. P.. OLEJNIK.v

SHOCK ABSORBER. APPLICATION FILED MY 7, 1914. y

1,128,179. I PatenteqFeb.9,191 5.

ROBERT F. OLEJNIK, ,0F NEW YORK, N. Y.

' SHOCK-ABSORBER.

Specicationof Letters Patent.

Application ined may 7, 1914. serial so. 836,969.,

VT0 all 'whom it may concern Be it .known that I, ROBERT F. OLEJNIK, a citizen of the' United States, residing at New York, in the county of New York and State of New York, have invented certain new and useful lmprovements in Shock- 'Absorbers, of which the following is a specil iication.

This invention relates to shock absorbers specially designed for use on motor vehicles.

The object of the invention is the provision of a device of this character of improved and simplified construction which shall be inexpensive tol manufacture.

With this and other objects in View, the

invention consists in the novel construction, arrangement and formation of parts as will be hereinafter specifically described, claimed and illustrated in the accompanying drawings, in which,

Figure l represents a central longitudinal sectional View through the improved shock absorber, and, Fig: 2 represents a fragmental longitudinalA sectional View taken at right angles to Fig. l on the line 2 2.

Referring to the drawing in detail, Wherein similar reference numerals designate corresponding parts throughout the several views, the numeral indicates the body of the shock absorber' having an outwardly directed flange 6 at the lower end thereof and parallel vertical openings 7 therethrough. A hollow casing 8 is secured at its upper edges to the flange 6 and is primarily del signed to protect the parts of the shock absorber from dust, dirt, dampness or the like. The upper portion of the body 5 is slidably received within the depending flange 9 of a hollow cap 10. The web portion 11 of a U-shaped bolt is disposed within the cap 10 end is operatively secured therein by a block 12 disposed between the side walls of said cap and said web portion and adapted to be secured in operative position by a suitable bolt or the like positioned through suitable apertures 18 formed in the block 12 and the side walls ol the cap 1G.

The parallel arms l-l of the 'kl-shaped bolt are directed downwardly through the opening 7 in the body 5 and are connected at their lower ends by a strap l5 secu red in'operative position by nuts or the like 1G thread'- ed on the ends of the parallel arms 14. The arms i4 and strap l5 are completely inclosed by the casing 8 and :1re thus cfl'ectively protected against the action ofatmos pherical dampness, dust or the like. A tube ,'17 is secured at its lower end centrally of the strap l5 between the parallel arms 14 and project upwardly toward the body 5, and an inner tube 18 is also secured to the strap 15 in spaced relation to the outer tube 17 whereby a suitable space is provided to telescopically receive the inner tube 19 secured to the under side of the body 5 and projecting downwardly therefrom. An outer tube or cylinder 20 is also secured to the under side of the body 5 and telescopically receivesthe outer tube or cylinder 17 carried. by the strap 15. It will be understood that the tube or cylinders'17, 18, 19 and 20 are snugly tted together so that it is impossible for air to escape between the upper and lower pairs of the tubes. A recess 22 is formed in the bottom of the body 5 and communicates with the inner tube 19, and also communicates with a transverse opening 23 formed through said body and extending to one of the side faces thereof. The outer end of the transverse opening 23 is threaded and a plug 24 is removably secured therein 'and provided with a central opening 25 communicating with the longitudinal opening 22. A ball valve 26 is slida ble in the transverse opening 23 and is normally retained seated against the end of the plug 24 by a spring 27 thereby preventing air contained within the chamber 28 between the inner tubes 1S and 19 from escaping through the ports or openings 25 in theA plug and permitting air to freely enter said chamber, as will be understood.

Springs 30 are coiled around the arms 14; of the U-shaped member and normally retain the body 5 firmly seated in the lower end. of the cap 10.

The shock absorber herein described may be advantageously applied to use in connection with various types 'of motor vehicles, and in the preferred arrangement the cap 10 and inverted U-shaped bolt 11 carried thereby are suitably secured as by a bolt extending through the opening'l to the axle or axle spring ofthe motor vehicle, while the body or block 5 is suitably connected with the body or body spring of the vehicle as by extending a suitable bolt or other securing means through an opening 28 formed through said block. It will be clearly apparent that relative movement of the cap l() and body 5 of the shock vabsorber Patented Fein 9, 1915.

' will be e'eetively *resisted and cushioned by the springs 30 and air in the chamber 28 one end of said block and inclosing the free extremities of said U-sbaped member, a strap connecting the free extremities of said member, springs disposed on -the parallel portions of said U-sbaped member and n'ormally retaining said block in engagement with said cap, telescoping tubes secured to said body and said strap, and a spring y pressed valve in said body for controlling the exit of air from said telescoping tube.

2. A device of the character described comprising a U-shaped member, a cap secured to the web portion of said U-sbaped member, a block sl'idable longitudinally of said U-shaped member, a easing secured te one end of said block and inclosing the free extremities of said U-shaped member, a strap connecting the free extremities of said member, springs disposed on the parallel portions of said Ushaped member and n0rmally retaining said block in engagement with said cap, and telescoping tubes secured to said body and said strap.

ln testimony whereof l affix my signature in presence of two Witnesses.

ROBERT F. OLEJNlK. 

